Drive unit and testing equipment

By designing the stator and mover base structure, the test module achieves smooth movement and compact arrangement, resolving the contradiction between high efficiency and accuracy in the test module and improving the overall performance of the test equipment.

CN114895076BActive Publication Date: 2025-10-31SHENZHEN ORANGE AUTOMATIVE CO LTD
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Patent Information

Application Number
CN202210323550.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-03-30
Publication Date
2025-10-31
Estimated Expiration
2042-03-30

AI Technical Summary

Technical Problem

In existing testing equipment, the testing module struggles to maintain testing efficiency while maintaining high stability, especially when the test positions of the test pieces are close together, which can easily lead to interference and collisions, affecting testing accuracy and efficiency.

Method used

It adopts a stator and mover base structure, with multiple mounting seats on the mover base. The mounting seats are slidably connected by alternately distributed guide rails, which enables the smooth movement of multiple test modules, avoids mutual interference and collision, and ensures the compact arrangement and smooth movement of the mounting seats through guide groups and buffer components.

Benefits of technology

It enables smooth movement of multiple test modules in a compact space, improving testing efficiency and accuracy. It is suitable for simultaneous testing in small space environments, reducing equipment cost and complexity.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a driving device and a testing equipment. The driving device includes a stator, a mover base, mounting bases, and guide groups. The mover base can move along the stator. Each mounting base is connected to a reading head. Each guide group includes two guide rails. The two ends of each mounting base are slidably connected to the two guide rails in the same guide group. Furthermore, the guide rails in different guide groups are alternately distributed along a direction perpendicular to the movement of the mover base. In this invention, the driving device can simultaneously drive multiple mounting bases to move. The alternating distribution of guide rails in different guide groups allows adjacent mounting bases to stagger in the extension direction of the stator. When the mounting bases move along the guide rails, they can avoid each other, preventing interference and collisions. This allows the testing module to move smoothly, and the different mounting bases can be arranged relatively compactly during movement. Multiple testing modules can simultaneously test the test piece, effectively improving testing efficiency.
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Description

Technical Field

[0001] This invention relates to the field of automated testing technology, and in particular to a driving device and testing equipment. Background Technology

[0002] The testing accuracy of testing equipment directly affects the product's yield rate. In testing equipment, the testing module is mounted on the driving device. High-stability driving allows the testing module to be accurately positioned to different locations of the device under test (DUT) for testing. In addition, to improve testing efficiency and meet testing requirements, multiple testing modules usually need to participate in testing simultaneously. When the testing locations of the DUTs are close together, such as Mark points on PCBs or PCBAs, or when different testing modules need to test the same location simultaneously, interference and collisions can easily occur between different testing modules, making it impossible to balance the stability of the testing module movement and testing efficiency. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a driving device that can provide smooth driving while also ensuring testing efficiency.

[0004] The present invention also proposes a test device having the above-mentioned driving device.

[0005] A driving device according to a first aspect embodiment of the present invention is used for mounting and driving a test module to move, comprising:

[0006] stator;

[0007] At least two movable seats are provided. The movable seats are connected to the stator and are distributed sequentially along the extension direction of the stator. The movable seats are movable along the stator.

[0008] At least two mounting bases are provided, and each of the moving parts is fixed with one of the mounting bases. Each mounting base is connected to a reading head. The mounting bases are used for mounting the test module.

[0009] The guide group is provided in at least two groups. Each guide group includes two guide rails, which are respectively located on both sides of the stator. The two ends of each mounting seat are slidably connected to the two guide rails in the same guide group. Furthermore, the guide rails in different guide groups are alternately distributed in a direction perpendicular to the movement of the mover seat.

[0010] The driving device according to embodiments of the present invention has at least the following beneficial effects:

[0011] In the driving device of this invention, multiple moving seats share a single stator and can all move along the stator. The driving device can simultaneously drive multiple mounting seats to move. The guide rails in different guide groups are alternately distributed, so that adjacent mounting seats are staggered in the extension direction of the stator. When the mounting seats move along the guide rails, they can avoid each other, preventing interference and collision between the mounting seats. This allows the test module to move smoothly, and the different mounting seats can be arranged relatively compactly during the movement. Multiple test modules can test the test piece at the same time, which can effectively improve the testing efficiency.

[0012] According to some embodiments of the present invention, the mounting base includes a mounting body, and two mounting feet are connected to both ends of the mounting body. The two mounting feet are respectively connected to the two sides of the mounting body, and the two mounting feet are slidably connected to the same guide rail. The mounting feet in adjacent mounting bases are alternately distributed along a direction perpendicular to the movement of the moving base.

[0013] According to some embodiments of the present invention, the side of the mounting body has a clearance space, and the mounting feet can be inserted into the clearance space.

[0014] According to some embodiments of the present invention, the mounting feet are bent toward the guide rail, a portion of the side of the mounting body is connected to an outer edge, and the clearance space is located on the side of the outer edge facing the guide rail.

[0015] According to some embodiments of the present invention, a buffer is provided between adjacent mounting bases, the buffer being connected to the mounting body of one of the mounting bases.

[0016] The test apparatus according to a second aspect of the present invention is characterized in that it comprises:

[0017] At least one driving device in the first aspect embodiment;

[0018] Multiple test modules are provided, and one test module is fixed on each of the mounting bases.

[0019] According to some embodiments of the present invention, the plurality of test modules are divided into multiple groups along the moving direction of the moving base, each group including at least one of the test modules, and the test modules in adjacent groups are symmetrically distributed.

[0020] According to some embodiments of the present invention, a moving device is also included, the moving device comprising a moving frame connected to the mounting base, the test module being slidably connected to the moving frame, and the moving frame being arranged along a moving direction perpendicular to the moving base.

[0021] According to some embodiments of the present invention, the plurality of test modules are divided into multiple groups along the moving direction of the moving base, each group including at least one test module. The test module includes a test frame and a test piece. The test frame includes a first mounting part and a second mounting part. The first mounting part is connected to the moving frame, and the test piece is connected to the second mounting part. The second mounting part is connected to one side of the first mounting part. The second mounting part of adjacent test modules in the same group has a different tilt angle relative to the first mounting part, and the projections of two adjacent first mounting parts toward the extending direction of the moving frame do not overlap.

[0022] According to some embodiments of the present invention, the device further includes a frame and a plurality of said drive devices, which are mounted on the frame and located on different sides of the frame.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a schematic diagram of the structure of one embodiment of the driving device of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure at point A;

[0027] Figure 3 for Figure 1 A schematic diagram of the structure of one embodiment of the mounting base;

[0028] Figure 4 This is a schematic diagram of the structure of one embodiment of the testing equipment of the present invention;

[0029] Figure 5 for Figure 4 A schematic diagram of the structure of one embodiment of the drive device on one side;

[0030] Figure 6 for Figure 4 A schematic diagram of the structure of one embodiment of the drive device on the other side;

[0031] Figure 7 for Figure 5 or Figure 6 A schematic diagram illustrating the fit between a mobile frame and a mounting base in one embodiment;

[0032] Figure 8 for Figure 5 Diagram showing the assembly of the test module;

[0033] Figure 9 for Figure 8 A schematic diagram showing the assembly of one of the test modules.

[0034] Figure label:

[0035] Drive unit 100, stator 110, mover seat 120, mounting base 130, mounting body 131, middle section 1311, edge section 1312, outer edge 1313, mounting edge 1314, mounting foot 132, clearance space 133, buffer 134, guide group 140, guide rail 141, reading head 150, track 160, baffle 170, anti-collision rubber column 180; test module 200, test frame 210, first mounting part 211, second mounting part 212, test piece 220; frame 300; conveying device 400; moving device 500, moving frame 510, cavity 520, moving body 530, moving rail 540. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0038] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0040] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Reference Figure 1 and Figure 2 This invention provides a driving device 100 for mounting and driving a test module to move. The driving device 100 includes a stator 110, a mover seat 120, a mounting base 130, and a guide group 140. At least two mover seats 120 and mounting bases 130 are provided, and at least two guide groups 140 are provided. The mover seats 120 are connected to the stator 110 and are distributed sequentially along the extension direction of the stator 110. After the driving device 100 is powered on, the mover seats 120 can move along the stator 110. Each mover seat 120 is fixed with a mounting base 130 for mounting the test module. Each mounting base 130 is connected to a reading head 150. The mounting base 130 and the mover seat 120 can move synchronously along the stator 110, simultaneously driving the test module and the reading head 150 to move. The reading head 150 acquires the reading from the mounting base. The current position information of 130 is fed back to the drive device 100 for closed-loop control of the test module's movement distance. Each guide group 140 includes two guide rails 141, which are located on both sides of the stator 110. The two ends of each mounting seat 130 are slidably connected to the two guide rails 141 in the same guide group 140. The guide rails 141 extend in the same direction as the stator 110. The guide rails 141 guide the movement of the mover seat 120, ensuring the movement accuracy and stability of the mover seat 120. In addition, the guide rails 141 in different guide groups 140 are alternately distributed along the direction perpendicular to the movement of the mover seat 120. Since the two ends of the mounting seat 130 are connected to the guide rails 141 in the same group, the mounting seats 130 are staggered along the extension direction of the stator 110, which facilitates mutual avoidance when the mounting seats 130 move along the guide rails 141.

[0042] Therefore, in this embodiment of the invention, the driving device 100 has multiple moving seats 120 sharing a single stator 110, and all of them can move along the stator 110. The driving device 100 can simultaneously drive multiple mounting seats 130 to move. Compared to the method where different mounting seats 130 are driven individually by different driving devices 100, the number of parts and driving devices 100 is reduced, resulting in lower cost. Furthermore, due to the alternating distribution of guide rails 141 in different guide groups 140, adjacent mounting seats 130 are staggered in the extension direction of the stator 110. When the mounting seats 130 move along the guide rails 141, they can avoid each other, preventing interference and collisions. This allows the test module to move smoothly, and the different mounting seats 130 can be arranged relatively compactly during movement, with a small distance between adjacent mounting seats 130. This is suitable for small-space testing environments where the test positions of the test pieces 220 are close together, and where different test modules test the same position of the test pieces 220. Multiple test modules can test the test pieces simultaneously, which can effectively improve testing efficiency.

[0043] It should be noted that the stator 110 can be a linear encoder or a magnetic encoder. Each mounting base 130 is equipped with a reading head 150. Different reading heads 150 can be connected to the same end or both ends of the mounting base 130. In one embodiment, the drive device 100 also includes a track 160. The track 160 extends in the same direction as the stator 110. Different reading heads 150 are all connected to the same end of the mounting base 130. Different reading heads 150 are all slidably connected to the track 160. The track 160 guides the movement of the reading heads 150, which facilitates the smooth movement of the reading heads 150 and accurately determines the moving position of the mounting base 130. Furthermore, by setting one track 160, the guidance of all reading heads 150 can be achieved, simplifying the structure of the drive device 100.

[0044] In addition, the drive device 100 should be equipped with a drive module, which includes a wiring harness connected to the mover 120 and the reading head 150, as well as a program controller. The program controller is used to make the mover 120 move along a preset moving path to drive the test module to different positions of the test piece. Through the real-time feedback of the position of the mounting base 130 by different reading heads 150, the test module can be aligned with the test point of the test piece to perform the test, ensuring test accuracy.

[0045] like Figure 2 and Figure 3As shown, the mounting base 130 includes a mounting body 131 and mounting feet 132. Two mounting feet 132 are connected to both ends of the mounting body 131. The two mounting feet 132 are located on both sides of the mounting body 131. Both mounting feet 132 are slidably connected to the guide rail 141, so that the mounting body 131 remains balanced after being connected to the guide rail 141, and the smoothness of the movement of the mounting base 130 is improved. In addition, the mounting feet 132 in adjacent mounting bases 130 are alternately distributed along the direction perpendicular to the movement of the moving part 120. That is, the mounting feet 132 of adjacent mounting bases 130 extend towards each other, so that the mounting feet 132 of one mounting base 130 can be inserted between the two mounting feet 132 of another mounting base 130 by movement, which improves the compactness of the connection between the mounting bases 130 and realizes the mutual avoidance between the mounting bases 130.

[0046] In addition, the mounting body 131 has a middle section 1311 and two edge sections 1312. The two edge sections 1312 are connected to both ends of the middle section 1311. The mounting feet 132 are connected to both sides of the edge sections 1312. The mounting feet 132 extend away from the mounting body 131. There is a clearance space 133 between the two mounting feet 132 and the outer side of the middle section 1311. When the mounting base 130 moves, its mounting feet 132 can be inserted into the clearance space 133 of the adjacent mounting base 130.

[0047] In one embodiment, the mounting foot 132 is bent towards the guide rail 141, with the end of the mounting foot 132 away from the mounting body 131 located on the side of the mounting body 131 facing the guide rail 141. An outer edge 1313 extends from the side of the middle section 1311, and a clearance space 133 is located on the side of the outer edge 1313 facing the guide rail 141. It should be noted that the mounting base 130 is used for mounting the test module; therefore, the mounting base 130 needs to have a flat mounting surface with sufficient area. In this embodiment, the middle section 1311 and the outer edge 1313 are combined to mount the test module, increasing the mounting area of ​​the mounting base 130. Furthermore, the mounting foot 132 can be inserted between the outer edge 1313 and the guide rail 141, allowing the mounting base 130 to accommodate both the mounting of the test module and clearance between adjacent mounting bases 130. Furthermore, the portion of the middle section 1311 located on the outer edge 1313 facing the guide rail 141 can be recessed relative to the outer side of the outer edge 1313. That is, the outer side wall of the outer edge 1313 is located outside the outer side wall of the middle section 1311. This arrangement can increase the range of the clearance space 133, further reducing the distance between adjacent mounting bases 130, which is beneficial for testing the test piece in a small space testing environment.

[0048] In addition, to avoid collisions caused by adjacent mounting brackets 130 being too close together, such as Figure 2As shown, in this embodiment of the invention, a buffer 134 is also provided between adjacent mounting seats 130. The buffer 134 can be connected to the side of one of the two adjacent mounting seats 130. The buffer 134 serves to reduce the impact intensity between the mounting seats 130, making the movement of the mounting seats 130 more stable. The buffer 134 can be made of materials such as foam, rubber, or silicone.

[0049] Furthermore, the drive unit 100 also includes two baffles 170, which are located at both ends of the stator 110. Each baffle 170 is connected to a plurality of anti-collision rubber posts 180, which extend toward the stator 110 and limit the extreme position of the mounting base 130 to prevent the mounting base 130 from accidentally detaching, thereby improving the safety of the drive unit 100.

[0050] like Figure 4 As shown, an embodiment of the present invention also provides a testing device, including at least one of the above-described driving devices 100, and a plurality of testing modules 200. Each mounting base 130 of the driving device 100 is equipped with a testing module 200. The driving device 100 drives the testing module 200 to test different positions of the test piece.

[0051] It should be noted that the test module 200 should include a test piece 220 for testing. For example, when the device under test is a PCB or PCBA, the test piece 220 can be set as a probe. The test module 200 can also be equipped with a drive unit for driving the test piece 220 to rotate and move. The test piece 220 is mounted on the drive unit to adjust the position of the test piece 220 and extend or retract it accordingly to the device under test.

[0052] Different driving devices 100 can be distributed along the same horizontal plane or along a vertical direction. For example, in one embodiment, different driving devices 100 are all located in the same horizontal plane, and different driving devices 100 can drive different test modules 200 to move, and make the test modules 200 test the same side of the test piece; in another embodiment, different driving devices 100 are distributed simultaneously along the horizontal and vertical directions, so that different driving devices 100 are located on different sides of the test piece, and multiple driving devices 100 are used in combination to test test points on different sides of the test piece; in another embodiment, such as Figure 4 As shown, different driving devices 100 are distributed vertically, and different driving devices 100 face the upper and lower sides of the test piece respectively. The combination of multiple driving devices 100 can enable the test module 200 to test the upper and lower sides of the test piece without flipping the test piece, and the test equipment has high testing efficiency.

[0053] The testing equipment also includes a frame 300, on which the drive unit 100 is mounted. The frame 300 can be made of marble, which has high parallelism and flatness. The frame 300 provides a relatively flat mounting surface for the stator 110, guide rail 141, track 160, etc., which is beneficial for improving the driving accuracy of the drive unit 100. The frame 300 can be configured as a frame, with different drive units 100 mounted on different sides of the frame 300. The test piece is located at the center of the frame 300. Multiple drive units 100 are combined to drive different test modules 200, which can test different sides of the test piece. Furthermore, the drive units 100 located on different sides of the frame 300 can include different numbers of mounting bases 130 to match the testing requirements of different sides of the test piece 220; for example... Figure 5 and Figure 6 As shown, the drive unit 100 connected to the upper side of the rack 300 includes four mounting bases 130 and is equipped with four test modules 200. The drive unit 100 connected to the lower side of the rack 300 includes two mounting bases 130 and is equipped with two test modules 200. The number of mounting bases 130 in the drive unit 100 and the installation position of the drive unit 100 can be flexibly adjusted according to the testing requirements of the test piece 220.

[0054] It is conceivable that the testing equipment also includes a conveyor 400, which is used to transport the test piece so that the testing module 200 can perform continuous automated testing on different test pieces. The conveyor 400 can use a belt, rollers, or other conveying method. The conveyor 400 should include components for positioning and stopping the test piece, so that the testing module 200 can locate the test points on the test piece. Figure 4 As shown, the conveying device 400 is located between the upper and lower driving devices 100, and the test piece passes through the two. The test modules 200 of the upper and lower layers can test the upper and lower surfaces of the test piece at the same time.

[0055] like Figure 8 As shown, multiple test modules 200 are grouped together along the moving direction of the moving base 120, with each group including at least one test module 200. The test modules 200 in adjacent groups are symmetrically distributed. By grouping the different test modules 200 into different groups, the drive device 100 can drive the test modules 200 to move in groups, which facilitates control. For example, when the test points of the test piece are divided into regions, the test modules 200 in different groups are responsible for testing the test points in different regions. The test modules 200 in different groups are independent of each other, which can prevent interference between the test modules 200. Furthermore, the symmetrical distribution of the test modules 200 in adjacent groups can simplify the control logic of the drive device 100 on the mounting base 130 and achieve high control accuracy.

[0056] The number of test modules 200 within adjacent groups may be the same or different. In one embodiment, such as... Figure 7 As shown, the upper drive device 100 includes four mounting bases 130, each mounting base 130 is equipped with a test module 200, the four test modules 200 are arranged in pairs and symmetrically with each other; in other embodiments, the drive device 100 may include three mounting bases 130 and install three test modules 200, the three test modules 200 are arranged in pairs and facing each other.

[0057] The testing equipment also includes a moving device 500, which includes a moving frame 510 connected to the mounting base 130. The test module 200 is slidably connected to the moving frame 510. The moving frame 510 is set in a direction perpendicular to the moving part of the stator 120, so that the test module 200 can move simultaneously in two directions: the extension direction of the stator 110 and the direction perpendicular to the extension direction of the stator 110. The test module 200 has a large range of movement and can adapt to test pieces with a large test area.

[0058] Reference Figure 3 and Figure 7 The movable frame 510 is mounted on the outer edge 1313 and edge section 1312 of the mounting base 130. The entire plane of the mounting base 130 is in contact with the movable frame 510, providing stable contact and support for the movable frame 510. Furthermore, a mounting edge 1314 protrudes from the outer side of the outer edge 1313 section. This mounting edge 1314 is used for mounting the movable frame 510, thereby further increasing the contact area between the mounting base 130 and the movable frame 510, as well as the stability of the movable frame 510.

[0059] The movable frame 510 is designed with a hollow shape to reduce weight. The movable frame 510 has a cavity 520 inside. The movable device 500 also includes a movable body 530 and a movable rail 540. The movable rail 540 is embedded in the cavity 520. The movable body 530 is slidably connected to the movable rail 540. The movable rail 540 extends in the same direction as the movable frame 510. The movable rail 540 guides the movement of the movable body 530. The test module 200 is installed on the movable body 530. The movable body 530 can be driven by components such as a linear motor and a ball screw.

[0060] like Figure 8 and Figure 9As shown, the test module 200 includes a test frame 210 and a test piece 220. The test frame 210 includes a first mounting part 211 and a second mounting part 212. The first mounting part 211 is connected to the moving frame 510, and the test piece 220 is connected to the second mounting part 212. The second mounting part 212 is connected to one side of the first mounting part 211. The second mounting part 212 of adjacent test modules 200 in the same group has a different tilt angle relative to the first mounting part 211, and the projections of adjacent first mounting parts 211 toward the moving direction of the moving frame 510 do not overlap. Therefore, the projections of multiple first mounting parts 211 of test modules 200 in the moving direction of the moving frame 510 have gaps, and the projections of multiple second mounting parts 212 of test modules 200 in the moving direction of the moving frame 510 have gaps. When the test module 200 moves with the moving frame 510, adjacent test frames 210 can avoid each other and prevent the test frames 210 from colliding with each other.

[0061] It should be noted that, in the embodiments of the present invention, when the test module 200 moves along the extension direction of the stator 110, the adjacent mounting seats 130 can avoid each other because there is a clearance space 133 in the mounting seat 130. When the test module 200 moves along the extension direction of the moving frame 510, the adjacent test frames 210 can avoid each other because there is a gap in the projection of the test frame 210 in the moving direction of the moving frame 510. Therefore, in the embodiments of the present invention, the test module 200 can be moved simultaneously in two mutually perpendicular directions, and collisions can be avoided during the movement of the test module 200. The movement of the test module 200 is more stable, improving the accuracy and range of the test equipment. Furthermore, the second mounting part 212 of adjacent test modules 200 in the same group has a different tilt angle relative to the first mounting part 211. Different test pieces 220 can test the test piece at different angles, avoiding the overlap of the anchor points of the test pieces 220 on the test piece, which would cause interference between the test pieces 220. Moreover, different test pieces 220 can simultaneously test the same Mark point of the test piece to characterize different parameters of the test piece.

[0062] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A driving device for mounting and driving a test module to move, characterized in that, include: stator; At least two movable seats are provided. The movable seats are connected to the stator and are distributed sequentially along the extension direction of the stator. The movable seats are movable along the stator. At least two mounting bases are provided, and each of the moving parts is fixed with one of the mounting bases. Each mounting base is connected to a reading head. The mounting bases are used for mounting the test module. The guide group comprises at least two groups, each group including two guide rails, which are respectively disposed on both sides of the stator. Each mounting base has its two ends slidably connected to the two guide rails within the same guide group. Furthermore, the guide rails in different guide groups are alternately distributed along a direction perpendicular to the movement of the mover base. One guide group includes a first guide rail and a second guide rail arranged along a direction perpendicular to the movement of the mover base, and the other guide group includes a third guide rail and a fourth guide rail arranged along a direction perpendicular to the movement of the mover base. The third guide rail is located between the first guide rail and the second guide rail, and the minimum distance between the third guide rail and the first guide rail is less than the minimum distance between the third guide rail and the second guide rail. The second guide rail is located between the third guide rail and the fourth guide rail, and the minimum distance between the second guide rail and the fourth guide rail is less than the minimum distance between the second guide rail and the third guide rail. The mounting base includes a mounting body, with two mounting feet connected to each end of the mounting body. The two mounting feet are respectively connected to the two sides of the mounting body, and both mounting feet are slidably connected to the same guide rail. The mounting feet in adjacent mounting bases are alternately distributed along a direction perpendicular to the movement of the moving base. The side of the mounting body has clearance space, and the mounting feet can be inserted into the clearance space.

2. The driving device according to claim 1, characterized in that, The mounting feet are bent toward the guide rail, and a portion of the side of the mounting body is connected to an outer edge. The clearance space is located on the side of the outer edge facing the guide rail.

3. The driving device according to claim 1, characterized in that, A buffer is provided between adjacent mounting bases, and the buffer is connected to the mounting body of one of the mounting bases.

4. The testing equipment, characterized in that, include: At least one drive device according to any one of claims 1 to 3; Multiple test modules are provided, and one test module is fixed on each of the mounting bases.

5. The testing equipment according to claim 4, characterized in that, The test modules are divided into multiple groups along the moving direction of the moving base, each group including at least one test module, and the test modules in adjacent groups are symmetrically distributed.

6. The testing equipment according to claim 4, characterized in that, It also includes a moving device, which includes a moving frame connected to the mounting base, and the test module is slidably connected to the moving frame. The moving frame is arranged along a moving direction perpendicular to the moving base.

7. The testing equipment according to claim 6, characterized in that, The test modules are divided into multiple groups along the moving direction of the moving base. Each group includes at least one test module. Each test module includes a test frame and a test piece. The test frame includes a first mounting part and a second mounting part. The first mounting part is connected to the moving frame. The test piece is connected to the second mounting part. The second mounting part is connected to one side of the first mounting part. The second mounting part of adjacent test modules in the same group has a different tilt angle relative to the first mounting part, and the projections of two adjacent first mounting parts toward the extending direction of the moving frame do not overlap.

8. The testing equipment according to any one of claims 4 to 7, characterized in that, It also includes a frame and a plurality of the aforementioned drive units, which are mounted on the frame and located on different sides of the frame.

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